Racial and socioeconomic disparities in physical and mental health problems are large, persistent, and severe; begin during childhood; and stem from in part damage to physiologic stress response systems caused by chronic stress. Discovery of ways to prevent and/or halt this progression of damage to a child's stress response system may offer new directions for combatting health disparities. This project will evaluate the efficacy of a new prevention program designed to teach preadolescent children effective ways for coping with chronic stress that will have direct effects on their physiologic stress response systems (hypothalamic-pituitary-adrenal axis) and ultimately prevent onset of anxiety, depression, and post-traumatic stress symptoms and disorders.